Home / 866,155.83-1,195,302.77-478,997.30

Finding the Fourth Proportional to 866,155.83, 1,195,302.77 and 478,997.30

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Solution

The fourth proportional to 866,155.83, 1,195,302.77 and 478,997.30 is: 661,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,155.83 : 1,195,302.77 = 478,997.30 : x
  2. Step 2: Convert to fraction form
    866,155.83/1,195,302.77 = 478,997.30/x
  3. Step 3: Cross multiply
    866,155.83x = 1,195,302.77 × 478,997.30
  4. Step 4: Simplify right side
    866,155.83x = 572,546,791,141.02
  5. Step 5: Solve for x
    x = 572,546,791,141.02/866,155.83
  6. Step 6: Final answer
    x = 661,020.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.